Home / 127,810.10-176,391.06-76,839.44

Finding the Fourth Proportional to 127,810.10, 176,391.06 and 76,839.44

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Solution

The fourth proportional to 127,810.10, 176,391.06 and 76,839.44 is: 106,046.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,810.10 : 176,391.06 = 76,839.44 : x
  2. Step 2: Convert to fraction form
    127,810.10/176,391.06 = 76,839.44/x
  3. Step 3: Cross multiply
    127,810.10x = 176,391.06 × 76,839.44
  4. Step 4: Simplify right side
    127,810.10x = 13,553,790,271.41
  5. Step 5: Solve for x
    x = 13,553,790,271.41/127,810.10
  6. Step 6: Final answer
    x = 106,046.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.